In this paper, I try to predict the problems Korean students might have in learning English intonation, to ascertain the problems through acoustic experiment, and to propose an efficient teaching method of English intonation, using personal computer.High speed speech analysis system using personal computr(PC) is used in this experiment to get acoustic data of English intonation. Five sentences of different patterns arc selected： indicative, imperative, wh-question, yes-no question and emphatic.A native American speaker are asked to pronounce the above sentences three times to make the model English intonation contour of each sentence. And then 2 Korean subjects are also asked to pronounce the chosen English sentences to ascertain their errors in English intonation patterns. The speech sound is inputted into the computer and then the intonation contour is represented in the monitor. Finally above 2 Korean subjects are asked to pronounce the chosen English sentences five times to ten times again, identifying their errored intonation contours. It is to correct their errors in English intonation.As a conclusion, I recommends that the high speed speech analysis system using PC be very useful and efficient in correcting Korean's errors in English intonation.